Submission #1211308

#	Time	Username	Problem	Language	Result	Execution time	Memory
1211308		lukasuliashvili	콤보 (IOI18_combo)	C++20	0 / 100	0 ms	408 KiB

combo

#include <bits/stdc++.h>
#include "combo.h"
using namespace std;

std::string guess_sequence(int N) {
    string p = "";
    int ans = press("AB");
    if (ans == 2) {
        p = "AB";
    } else if (ans == 1) {
        p = "A";
    } else {
        if (press("X") == 1) {
            p = "X";
        } else {
            p = "Y";
        }
    }

    string fix1, fix2, fix3;
    if (p[0] == 'A') { fix1 = "X"; fix2 = "B"; fix3 = "Y"; }
    if (p[0] == 'B') { fix1 = "A"; fix2 = "X"; fix3 = "Y"; }
    if (p[0] == 'X') { fix1 = "A"; fix2 = "B"; fix3 = "Y"; }
    if (p[0] == 'Y') { fix1 = "A"; fix2 = "B"; fix3 = "X"; }

    while (p.size() < N) {
        string pnext = p + fix1 + p + fix2 + fix3 + p + fix2 + fix1 + p + fix2 + fix2;
        int res = press(pnext);
        int sz = p.size();
        if (res == sz) {
            p += fix3;
        } else if (res == sz + 1) {
            p += fix1;
        } else {
            p += fix2;
        }
    }

    return p;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 95